Kutulutsidwa kwa caching DNS server PowerDNS Recursor 4.6 kulipo, komwe kuli ndi udindo wokonzanso dzina. PowerDNS Recursor imamangidwa pama code omwewo monga PowerDNS Authoritative Server, koma ma seva a PowerDNS obwereza komanso ovomerezeka a DNS amapangidwa kudzera mumayendedwe osiyanasiyana achitukuko ndipo amamasulidwa ngati zinthu zosiyana. Khodi ya polojekitiyi imagawidwa pansi pa layisensi ya GPLv2.
Seva imapereka zida zosonkhanitsira ziwerengero zakutali, imathandizira kuyambiranso pompopompo, ili ndi injini yolumikizira yolumikizira othandizira m'chilankhulo cha Lua, imathandizira mokwanira DNSSEC, DNS64, RPZ (Magawo a Mayankho a Mayankho), ndikukulolani kuti mulumikizane ndi mindandanda yakuda. Ndi zotheka kulemba zotsatira kusamvana ngati owona BIND zone. Kuwonetsetsa kuti magwiridwe antchito apamwamba, njira zamakono zolumikizirana zikugwiritsidwa ntchito mu FreeBSD, Linux ndi Solaris (kqueue, epoll, /dev/poll), komanso pakiti yapaketi ya DNS yochita bwino kwambiri yomwe imatha kukonza makumi masauzande a zopempha zofanana.
Mu mtundu watsopano:
- Anawonjezera ntchito ya "Zone to Cache", yomwe imakulolani kuti mutenge malo a DNS nthawi ndi nthawi ndikuyika zomwe zili mu cache, kotero kuti posungira nthawi zonse imakhala "yotentha" ndipo imakhala ndi deta yokhudzana ndi zone. Ntchitoyi ingagwiritsidwe ntchito ndi mtundu uliwonse wa zone, kuphatikizapo mizu. Kubweza Zone kumatha kuchitidwa pogwiritsa ntchito DNS AXFR, HTTP, HTTPS, kapena kudzera pa fayilo yapafupi.
- Ndizotheka kukonzanso zolembedwa kuchokera ku cache mutalandira zopempha zomwe zikubwera.
- Thandizo lowonjezera pakubisa mafoni ku maseva a DNS pogwiritsa ntchito DoT (DNS pa TLS). Mwachikhazikitso, DoT imayatsidwa mukatchula port 853 ya DNS Forwarder kapena mukamalemba momveka bwino ma seva a DNS kudzera paparameter ya dontho-to-auth-names. Chitsimikizo cha satifiketi sichinachitikebe, monga momwe zimasinthira ku DoT ndi chithandizo chake ndi seva ya DNS (zinthu izi zidzathandizidwa pambuyo povomerezedwa ndi komiti yokhazikika).
- Khodi yokhazikitsa maulumikizidwe a TCP omwe akutuluka yalembedwanso, ndipo kuthekera kogwiritsanso ntchito malumikizidwe awonjezedwa. Kuti mugwiritsenso ntchito maulumikizidwe a TCP (ndi DoT), maulumikizidwe samatsekekanso atangomaliza pempho, koma amasiyidwa otseguka kwakanthawi (khalidweli limayendetsedwa ndi tcp-out-max-idle-ms setting).
- Ma metrics omwe asonkhanitsidwa ndi kutumizidwa kunja omwe ali ndi ziwerengero komanso zidziwitso zamachitidwe owunikira awonjezedwa.
- Onjezani chinthu choyesera Chotsatira Chotsatira chomwe chimakupatsani mwayi wodziwa zambiri za nthawi yochitira gawo lililonse.
Source: opennet.ru